Brendan sits down, thinking. "If it's an imposter... than it's even more important that we catch her. But how will we find it..." He paces around. "Does she have any close friends or allies, people that absolutely trust her? Or better yet, people that know it's an imposter..." He stops, and gets a devious grin. "I think I have an idea on how we can catch it. But your going to have to explain this whole situation to me."
There are two directions to go in the sewer: left seems to go further into darkness. From the right, there is a light, and the sound of footsteps.